While the Jeep is moving 50mph or less, press the transfer case shift lever all the way forward/down into 2WD. The transfer case should release it by the time you slow to a stop - sometimes half a mile or so. If it doesn't, the transfer unit may need fluid, a fluid change, or adjustment. There could also be a similar problem with the front differential (axle drive gears).
That is 4 wheel drive. You are allowed to drive in that range on slippery surfaces.
The 2004 Toyota Camry has front wheel drive.
The 2004 Volkswagen Passat has front wheel drive.
The 2004 Ford Mustang has rear wheel drive.
The 2004 Subaru Forester has all wheel drive.
The 2004 Acura NSX has rear wheel drive.
The 2004 Hyundai Accent has front wheel drive.
The 2004 Ford Expedition has rear wheel drive.
The 2004 Volvo XC90 has front wheel drive.
The 2004 Subaru Legacy has all wheel drive.
The 2004 Volvo XC70 has all wheel drive.
The 2004 Cadillac CTS has rear wheel drive.